Queries guides

How-to guides for interacting with data sources.

Perform REST API requests

Learn how to connect and query REST APIs in Retool.

Insert CSV data into a database

Learn how to build an app that writes a CSV file to a database.

Send emails

Learn how to send emails using Retool Email or your own SMTP service.

Manage files

Learn how to work with files in Retool queries and components.

Share queries

Learn how to reuse queries with the Query Library.

Use cases

8 items

Server-side pagination

Learn how to implement server-side pagination of data.

SQL

3 items

Transform data

Learn how to write JavaScript to manipulate data.